Right guys ive hit a brick wall on this one and i need some ideas!
My car has been running prefectly for the past 6 weeks, its had every service part possbile on it, plugs, leads etc etc but all of a sudden on friday after wiring in my fog lights and TSD its just started to run like absoloute shite. Saying that it did start behaving odly when the battery started to die. It was missfiring on idle so i pulled the plugs etc this morning, cleaned them and put them back in, missfire seems to have gone but the car just refuses to idle. What could possibly go so wrong over night to make the car run so bad?